You drop a 1.40 kg book to a friend who stands on the ground at distance D= 12.0 m below. Your friend's outstretched hands are distance d = 1.30 m above the ground (see the figure). (a) What is the speed of the book when it reaches her hands? (b) If we substituted a second book with twice the mass, what would its speed be when it reaches her hands? (c) If, instead, the book were thrown down with initial speed 5.90 m/s, what would be the answer to (a)?
You drop a 1.40 kg book to a friend who stands on the ground at distance D= 12.0 m below. Your friend's outstretched hands are distance d = 1.30 m above the ground (see the figure). (a) What is the speed of the book when it reaches her hands? (b) If we substituted a second book with twice the mass, what would its speed be when it reaches her hands? (c) If, instead, the book were thrown down with initial speed 5.90 m/s, what would be the answer to (a)?
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Transcribed Image Text:You drop a 1.40 kg book to a friend who stands on the ground at distance D = 12.0 m below. Your friend's outstretched hands are at
distance d = 1.30 m above the ground (see the figure). (a) What is the speed of the book when it reaches her hands? (b) If we
substituted a second book with twice the mass, what would its speed be when it reaches her hands? (c) If, instead, the book were
thrown down with initial speed 5.90 m/s, what would be the answer to (a)?
(a) Number
i
Units
(b) Number
i
Units
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